This is the 1311th most frequent Polish word.
morzem
"Morzem" means "sea" in the instrumental case in Polish.
Noun used to specify location near a noun for 'sea'.
Spacerowaliśmy wieczorem nad morzem.
We walked by the sea in the evening.
Noun used with the preposition 'nad' to indicate proximity to 'sea'.
Na wakacjach byliśmy nad morzem.
During the holidays, we were by the sea.
Noun used to indicate the body of water a ship sails on.